Click the "Select File" button above, and choose your CU file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert CU to another file type
To convert CU CUDA files to another format, you need NVIDIA CUDA Toolkit or other Developer software.
Convert a file to CU
To convert other file formats to the "Source Code File" file type, you need software like NVIDIA CUDA Toolkit or a similar tool.
About CU files
The .CU file format is a source code file used by the NVIDIA CUDA platform. It contains C or C++ programming code alongside specialized parallel computing extensions. Developers use these files to write algorithms that run directly on an NVIDIA GPU rather than the standard CPU. The official software used to compile these files is the NVIDIA CUDA Toolkit, which includes the nvcc compiler. Because .CU files contain proprietary syntax extensions, such as the kernel launch directives, standard C++ compilers cannot process them directly. Furthermore, many generic text editors, document viewers, and web browsers fail to recognize the .CU extension. This causes the software to strip away syntax highlighting or refuse to open the file entirely, frustrating users who just want to read the code. The strict requirement for a specific compiler and a compatible hardware environment makes sharing executable code difficult for non-developers. If you need to share the code with a user who does not have a CUDA setup, you must convert the file. The best conversion targets are standard .CPP or .C files. This simple conversion forces standard IDEs and text editors to open the code with proper C++ syntax highlighting. Converting to .TXT or .PDF is also highly recommended for documentation, printing, and code review. Note that converting a .CU file to .CPP changes the file extension but does not remove the CUDA-specific syntax; standard compilers will still fail to build the executable, but the raw code becomes highly accessible. Standard online converters often fail to process .CU files because they do not recognize developer-specific file extensions. Just drag and drop your file to convert.guru to identify the format, view the raw source code safely, and convert it to standard text formats when possible. While only the official nvcc compiler can generate a working binary executable from this code, our analysis detects the underlying UTF-8 text structure so you can inspect, view, and extract the data without installing a massive toolkit.
Convert.Guru analyzes your CU file, detects the exact format, and lets you read the text inside.
If you want to convert CU file to CC, L, JS, TS, PY, JAVA, CPP, C, CS, PHP, RB or GO, you can use NVIDIA CUDA Toolkit or similar software from the "GPU Parallel Programming Code" category. In the File menu, look for Save As… or Export….
To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to CU, try NVIDIA CUDA Toolkit or another comparable tool in the "GPU Parallel Programming Code" category.
The CU Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our CU converter.